| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration cycle that uses mixed refrigerant mainly comprising R32 single refrigerant or R32 as refrigerant and also uses a compressor and a capillary tube, and that even when change of environmental temperature causes an overloaded state where the discharge refrigerant temperature of the compressor exceeds a predetermined reference value, can suppress rise of the discharge refrigerant temperature of the compressor in the overloaded state at low cost to ensure reliability of the compressor.SOLUTION: A refrigeration device includes a compressor 1, a capillary tube 3 as a throttle device, and a control valve 4 using a shape memory alloy spring. |
